{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Combination.Drug", "Treatment.Time_elapsed", "Effect", "Treatment.Duration", "Treatment.Dosage", "Treatment.Freq", "Subject.Age", "Treatment.Route", "Treatment.Drug", "Subject.Population", "Treatment", "Subject.Race"]}], "input": "The results from the present study suggest that tissue plasminogen activator treatment appears to be safe in patients with acute ischemic stroke taking warfarin with an international normalized ratio <1.7 and may reduce the risk of poor functional outcome."}
{"potential therapeutic event": [{"Combination.Drug": ["warfarin", "tissue plasminogen activator"], "Treatment.Time_elapsed": "NAN", "Effect": "may reduce the risk of poor functional outcome", "Treatment.Duration": "NAN", "Treatment.Dosage": "NAN", "Treatment.Freq": "NAN", "Subject.Age": "NAN", "Treatment.Route": "NAN", "Treatment.Drug": ["warfarin", "tissue plasminogen activator"], "Subject.Population": "NAN", "Treatment": ["tissue plasminogen activator treatment", "taking warfarin with an international normalized ratio <1.7"], "Subject.Race": "NAN"}]}